/Engine/Plugins/Media/ElectraCDM/Source/ElectraCDM/Public/ElectraCDMSystem.h
void GetCDMCustomJSONPrefixes ( [FString](API\Runtime\Core\Containers\FString) & OutAttributePrefix, [FString](API\Runtime\Core\Containers\FString) & OutTextPropertyName, bool & bOutNoNamespaces )